Witr and Nawaafil

Q: Please tell me all the virtues of Tahajjud Salaah?

Q: Is it sunnah for a lady to perform 2 rakaats in Masjid Quba on Saturday or is it sunnah only for men?

Q: Can chaast salaah still be performed at 11 am in the morning? I get my break from work at that time but is it permissible at that time?

Q: What is the ruling on reciting Durood Shareef after the Dua of Qunut in Witr prayer? Should it be recited or not? 

Some say that it is recommended - what is their evidence? And can the general public/people be encouraged to do so or not?

Q: If the sunnah muakkadah and ghair muakkadah prayers are performed sitting down on a chair and the ruku and sujood is done bowing sitting on a chair, is the salaah valid?

Q: We know it is sunnah to read 4 rakaat salaah before the Asr and Esha Salaah. Will it also be sunnah to purposely leave out these sunnah salaah SOMETIMES, as it is Sunnah Ghair Muakkada. 

Ezample, a person reads the 4 sunnah of Asr on Monday and purposely leaves it out on Tuesday and reads it again on Wednesday. Will this be regarded as a sunnah?

Q: May the four Sunnats of Jumuah, Zuhr, and Asr be performed in batches of two rakaats?

Q: Tonight I got up to pray tahajjud and when I started praying it felt like a tahajjud prayer though when I went into Sajda, I didn't feel the connection I thought I would, like I went to Allah in taha while crying and when I started praying all my tears were gone, I wasn't able to cry in my sujood. Does this mean I didn't pray it right?

As I checked that I did my wudu right and covered up my self right though still I feel something was missing.

Adding to that, I'm one day away from my periods and I also thought that the crying part was just from my mood swings which are a symptom of our period coming, because when I stood on the prayer mat all the tears went away.

Moreover, I had weird thoughts during the prayer like I wasn't praying right and had alot of skulls appearing in my thoughts (jinn like thoughts). Please share if there is a problem in this or am I just overthinking?

Q: What nafl salaah can one perform during the day for rizq and sustenance and for success? What must ones intention be when performing such nafl salaah?

Q: Please advise with regard to the following:

Is it permissible for a Musallee to look inside the Quraan during Taraweeh? If not, is there any social occasion in which it would be permissible?

If we are 3 people in our Taraaweeh Jamaat - the Imaam and one Musallee is a Hafiz, but their dhor is not so good and plan to improve it by performing Taraaweeh - will it be permissible for the Musallee to look into the Quraan during the Salah?